Espresso coffee machine



FIG. 1 is a top, front, and right side perspective view of an espresso coffee machine showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is an elevational view from the right side thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is an elevational view from the left side thereof; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for an espresso coffee machine, as shown and described. 